SERVICE REQUIREMENTS Health & Safety
Note: When servicing the dishdrawer, health and safety issues must be considered at all times. Specific safety issues are listed below with their appropriate icon. These are illustrated throughout the service information to remind service people of the issues. Electrical Safety Ensure the mains power has been disconnected before servicing the DishDrawer. If the mains supply is required to be on to service the DishDrawer, make sure it is turned off when removing any electrical component or connection to avoid electrical shock. 1.1.2 Electrostatic Discharge An anti-static strap is to be used as electrical static discharge (ESD) protection when servicing electronic components.

1.1.1

1.1.3

Good Working Practices

Ensure the work area is in a tidy and orderly condition at all times so as not to cause a hazard while service work is being completed. Always clean and tidy the DishDrawer and work area after service is completed. 1.1.4 Isolate Water Supply Turn off the water connection tap before servicing.

1.1.5

Water Leak Check

Check for water leaks as part of the testing after the service has been completed.

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D
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.8
Sheet Metal Edges
When working around cut sheet metal edges use appropriate gloves or protection to eliminate the chance of receiving a laceration.1. They may overheat.1.7 Solvent and Excessive Heat Damage Plastic surfaces can be damaged by solvents and excessive heat.6
Insulation Test
Megger test to check insulation.1. burnout or cause water damage.
1. Warning: Short together the phase and neutral pins on the plug so as not to damage any electronic circuitry. Ensure you do not run components unattended. 1.1.
1.9
Diagnostics While in diagnostics some safety devices are bypassed. flood.1.

2. To be used on the drawer while extended to observe water fill. To be used to retrieve data from the electronic controller along with the diagnostic program on your laptop.
1.2.2
Specialised Tools
For servicing this product Specialised tools are required. Down Load Pen Connection: P/N 425930C. 1. wash and drain operations.1 Static Strap: To be used as ESD protection when replacing or handling electronic components. Perspex Test Lid: P/N 525826. To be used to retrieve and download data from the electronic controller along with the diagnostic program on your laptop.2
1.2. P/N 525819.4
1. To be used to measure the air pressure in the lid seal and plumbing. Down Load Serial Connection: P/N 425376C.5
-3-
.2.2.1.3
1. Air Gauge and Plumbing.

2300 on Delicate and 2850 on Heavy Wash.
3. which is cooled by a heatsink and when necessary the drying fan. are run on low voltage (24v). 2500 rpm on Normal. One is for motor control and output switching and the other is for controlling interface and console functions.0 3. the chassis assembly is a load carrying structure designed to impart stiffness to the product and to ensure deflection is minimised. All output peripherals (solenoids.3.2
Motor
The motor is a fully electronically controlled 40V 60w 3 phase 6 pole brushless DC motor. Fast. The chassis exterior is made of white prepaint.1
TECHNICAL OVERVIEW Electronics
The DD601 electronic controller has two separate micro controllers on the main printed circuit board. while other components are made of electrogalvanised material.
-5-
. except the heating element. running at approximately 2300-2850 depending on wash cycle selected.
3. 4200 rpm on Drain. The electronics can connect to a computer service tool via a serial communications port for fault finding and product information. The element is switched by a relay and protected by a fail safe relay. On the single drawer four bolts and washers are used to secure the chassis to the shelf using the steel inserts.3
3. The feet of the cabinet are assembled into the chassis by means of four steel inserts which are clinched in place to form a permanent threaded connection. fans etc).1
Cabinet
Chassis
On the double drawer the double chassis is one complete assembly composed of 5 steel metal components locked together by a proprietry riveting process. The power for all low voltage devices comes from a 100w switchmode power supply. The user interface comprises a printed circuit board for front controls and a touch switch panel for internal controls. and Rinse cycles.3. Unlike most other dishwashers.

3.3 Amount of Water The tub fills with approximately 2. 3.2 Mixing the Detergent
Filling cold water enters the detergent dispenser.1
Filling
Cold Inlet
The tub of the dishwasher fills by a cold water inlet hose only. From the connection to the cold water pipe in the kitchen. the inlet hose enters the cabinet of the dishwasher at the base. becomes primed and pumps the water through the spray arm which will then rotate. Each tub is supplied water independently via one of the dual valve coils and a fill hose that runs through customised link assemblies at the back of the tub and travels along the base of the tub under the wiring cover to the front.4
3. the fill hose connects to the detergent dispenser which allows water to enter the tub. The drawer fronts are attached to the tub by means of formed hooks and two pins which are inserted through either side of the tub. 3. the wash pump (which has sensed the fill at 30 second intervals during the fill). Once this level is reached. the front panel supplied on each drawer is the mounting panel for the joinery finished drawer front. onto a dual water valve. flushing the detergent from the cup. On the integrated model.
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. through the dispenser into the tub.2 Drawer Fronts
Prefinished drawer fronts are formed from a prepainted blank of steel.4.4.4.
3. At the front of the tub. The joinery finished drawer front is supplied by the customer.The tub extends 510mm out of the cabinet by travelling along two rigidly attached slides on either side of the tub.3. firstly through the pre rinse section of the dispenser for the pre rinse cycle and secondly through the main wash section for all other cycles.2 litres of water. The water level is monitored by sensing the motor load through the electronics. level with the base of the spray arm attachment.

To enable each detergent chamber to be dispensed separately.2 What is the Lid Seal
The lid seal is a static plastic moulding retained in the lid which provides a dynamic seal to the tub. the lid seal inflates while the pre wash drain cycle removes any residue water from the tub.3 During Wash
The bellows section gasket is inflated by a solenoid activated diaphragm air pump. 3. This runs for approximately 60 seconds. The dynamic seal is created by a bellows section gasket bridging between the top flange of the tub and the lid.1
Lid Seal
When Activated
At the beginning of each wash cycle. one for pre wash and the other for the main wash. The detergent dispenser consists of two detergent chambers.5
Dispensing Detergent
The dispenser is mounted in the front wall of the wash tub.
3. A glowing red light on the tank filler cap indicates an empty rinse aid tank. The dynamic seal also locks the tub/drawer during washing.6
3. an inlet water diverter valve controlled by the electronics is necessary. Additionally a positive displacement pump unit and storage tank are incorporated within the dispenser to supply rinse aid.6. The rinse aid dispensed volume is adjusted utilising the dishwasher electronic controller. then the tub fills. 3. This cycles during the complete cycle at timed intervals to maintain a 35kpa sealing pressure. The detergent dispenser door is opened manually for detergent loading and then manually closed ready for the detergent to be transported to the wash tub by the inlet water.3.
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.6.6.

8. This creates a flow through water heating system during the wash cycle by allowing water to flow through the filter plate.8
Heating
3.7
3. The tub also has guide vanes around its walls which direct falling water from the wash cycle in a clockwise direction around the filter plate. The element is clamped in place by a lockring nut and supports the motor at the base of the tub.3 Spray Arm
The spray arm is shaped for most efficient waterflow.2 Rotor
The rotor is a four pole permanent magnet rotor with a graphite bearing at each end of the vertical shaft.
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.5 connector system to the wiring harness of the element.1 The Element The heater plate is an element consisting of a porcelain enamelled steel plate with a thick film resistive circuit written onto the dry side. The tub is a plastic recepticle which has a wash pump and sprayarm at the base. 3.8. This connects by means of a RAST 2. over the surface of the element and into the wash pump. 3.2 Heating the Water The heater plate lies beneath the filter plate. The holes are positioned for best penetration into the washload. This clears the filter plate of food particles into the sump where they can be trapped or pumped out during the drain cycle.7. with the water jets angled to ensure the sprayarm rotates at the most efficient speed.
3.8.3. 3. 3. At the lower end of the rotor shaft is the drain impellor and at the upper end is the wash impellor.3 Maintaining the Temperature Attached to the element is a sub printed circuit board with a temperature sensitive thermistor .7.7.1
Wash Cycle
Tub
The tub is the main cavity where all the wash activity occurs. Sensor components are unservicable.

It is not used for drying. 3.1 The Filter System
The tub is designed with vanes which swirl the water around and over the filter plate. The drain pump housing.
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.8. At the front of the tub. The inlet pipe plugs straight into the sump and is sealed there by a small ‘o’ ring. This requires the drain filter to be regularly emptied and cleaned.10
Drain Cycle
The drain pump is a self priming centrifugal pump which only pumps when the motor is rotating in the drain direction (anti-clockwise). located as part of the filter plate.9
Filter Plate
The filter plate is a stainless steel disk which lies below the dishrack and sprayarm and completely encompasses the base of the tub. The element is thermally monitored by the thermistor on the element through the electronic controller. 3.5mm or smaller soils flow through its micro mesh filter.4
Overheating Control
The heater plate is only activated during the wash cycles.
3. is welded to the motor housing. The drain cycle is a 60 second timed drain period. The outlet pipe has a non return flap valve to prevent soiled water returning to the tub. which incorporates an inlet and outlet pipe. eliminating re-depositing of soil during the wash.
3. The temperature is maintained by the thermistor. hence captivating the motor. The drain hose is an extruded blow mould hose which is routed over the link assembly and exits out of the base of the product and is connected to a domestic drain.9. The filter plate is removable for cleaning by removing the dishrack and sprayarm and unlocking the lockring nut anticlockwise.3. It has a five bladed impellor made from acetal pushed into a spline on the end of the rotor shaft. is the drain filter. Only soils up to 6mm pass through the drain filter during the drain cycle.2 Removing and Cleaning the Filter Plate
The drain filter can be emptied with the dishrack in place by removing the cutlery basket and opening the plastic section of the dishrack.9. Large soils collect in the drain filter and only 1. The element circuit is continuously monitored by the electronic controller and will switch a fail safe relay if a fault is detected in the heater circuit.

to minimise the amount of vapour visible when exiting from the drawer front.11
Drying Cycle
Immediately after water from the final hot rinse has been drained from the tub.
3.10 -
. After the drying cycle is complete.
. The fan draws air through the tub. The fan runs continuously during the drying cycle and will restart if the tub is opened and closed again. The fan is pulsed when needed throughout the entire wash cycle.3.13
Lockring Nut
The lockring nut holds the heater plate into the base of the tub and motor housing assembly to form a watertight seal. This deflates the seal and unlocks the tub and drawer.1
Deflating
Lid Seal
The lid seal is a static plastic moulding retained in the lid which provides a dynamic seal to the tub during the washing cycles. The moisture laden air is then mixed with a larger quantity of ambient air (from the kitchen). but will not restart if the tub is opened. It does this by compressing two large ‘o’ rings between the heater plate and tub and between the heater plate and the motor assembly. or a pause in the programme. 3. an exhaust valve releases the air pressure from the bellows section gasket. the drying system begins operation.12. It has clips which hold the drain hose. fill hoses and the wiring loom in place. This draws ambient air through the electronics heatsink to maintain the electronics components within their specified operating temperatures. Another function of the lockring nut is to support the wiring cover with three clips.12
3.12.
3.2 When the Lid Seal Deflates
At the end of the dishwasher programme. where it absorbs water from the dishload. the fan continues to run for 30 minutes.

drain and fill hoses from damage when opening and closing drawers.
. The wiring cover acts as a cosmetic part of the product.14
Wiring Cover
The wiring cover protects the customer from the 240V mains supply which passes over the link assembly and under the lockring to the front of the tub.3.11 -
. It also serves to protect the motor assembly.

The fault codes shown on Pages 20/21 have been implemented in the DishDrawer. with ‘_’ meaning the LED is Off.12 -
. to save the user & service person time and worry. while many User a faults are simply blockages or installation errors. To clear any fault press the Power button. These bytes are available for interrogation by a PC if required. In the Integrated models.0 4. and faults are indicated by a Red center LED. A fatal fault is accompanied by a continuous pulsating beep. easily fixed by the user. with the fault number indicated on the touch switch panel with Red LED’s.4. with 8 bytes of information logged to aid location of the fault. and ‘#’ meaning the LED is On. an LCD is not available.
. The last two faults are logged into EE memory.1
DIAGNOSTICS Setup & Diagnostics
The DishDrawer comes with comprehensive fault codes and built in diagnostics.
4. while a user fault is accompanied by a more pleasant continuous pulsating tone pattern. A Fatal fault will usually require the assistance of a qualified service person.2
Fault Modes
The faults are displayed in the LCD as one of 8 F (fatal) faults or one of 3 U (user) faults. if the dishwasher ever exhibits a fault. The indication below for the Touch Switch Panel is from left to right. It the fault is still present then it cannot be cleared.

5 dispenser levels (1 = approx 1ml of rinse aid . Push Power to exit when the desired setting has been selected. either repeat the above procedure or enter power off mode by pressing Power.
. so even with the power removed. The temperature is now displayed and the MIN symbol is switched off.3. 4. the rinse aid level is retained. Initiate a keylock by pushing and holding the Keylock button for 4 seconds. If the Smiley face is Off then no beeps will occur when the tub is Opened.4 Tub-Open Beep Setup The beep sequence that occurs when the tub is opened can be turned on or off using the Keylock button. It is adjusted for 1 . Keylock mode can now be exited. Once the setup mode is entered a beep is emitted and the LCD is red with ‘HP’ displayed. Temperature display mode is automatically cancelled at the end of a wash program (even in CC mode). push Power to exit. 5 = approx. 5mls of rinse aid).3. The amount of rinse aid dispensed into a rinse cycle can be varied to suit the level of hardness of the local water supply. The Integrated Model will sound a single beep when turning this option off. Once in keylock mode push and hold Start/Pause for 8 seconds to enter temperature display mode. 4. To enter temperature display mode. If the Smily Face on the LCD is On then the beep sequence will occur when the tub is Opened. 4.2 Rinse Aid / Tub-Open Beep Water Pressure Setup Mode
To enter this setup mode. hold the Programme and Eco touch switches simultaneously for 5 seconds.4. start a wash cycle as normal.1
Diagnostic Modes
Temperature Display Mode
During a wash cycle. while the actual beep sequence is sounded when turning this option on. Push Programme to advance the rinse aid setting. Once the desired setting is achieved.13 -
. To cancel temperature display mode.3
4.3 Rinse Aid Setup
The current rinse aid setting is shown using orange LED’s on the touch switch panel. Push Power at any time to exit this setup mode. The rinse aid index is stored in EE memory.3. the current water temperature can be displayed on the LCD instead of the time remaining.3. The DishDrawer will default to 'beeps on' if the mains power is removed.

Hold the reader pen over the Rinse Program LED and press Start / Pause to initiate the download. When there is no display on the LCD or the badge LED’s are off.3. A short beep indicates the start and finish of download. Push Power to exit when the desired setting has been selected. from a Start/Pause keypress.6 Dishwasher Diagnostics
Dishwasher Diagnostics can only be entered in Power Off mode. There are currently four levels of diagnostics. On entering diagnostic mode the first level is Download Mode.14 -
. 4.5.
. If “LP” is displayed then the setting is Low Pressure.3. with the Current Fault code displayed first followed by the Previous Fault Code. Diagnostics is entered by holding the Keylock and Start/Pause buttons simultaneously for 6 seconds. If no mode is entered then the display will cycle through the four levels and exit after the last. ie.4. The LCD displays the current water pressure setting.3.
Integrated: A high beep is sounded when changing the HP.7 Display / Download Mode
In this mode all LED’s (except Rinse program) and LCD segments (except keylock) are illuminated. Ensure that Keylock is pushed first to prevent the dishwasher from starting a wash. To move to next level push Power. and a low beep is sounded when changing to LP. The last two faults are displayed on the LCD during the optical download. Push the Start/Pause button to alternate between HP and LP. If “ HP” is displayed then the setting is High Pressure.3. Once a mode has been entered. 4. pushing Power will exit diagnostics completely (except Display & Show Off modes).8 Optical LED Download / Fault Display
An optical data download is available here to download all EE data to a PC via the Rinse Program Red LED. Low pressure is generally less than 50kPa or equivalent to that supplied by a ceiling tank. 4. Water Pressure Set Up The DishDrawer can be set to either High(Standard) or Low inlet water pressure.

Load sensing is enabled when the motor is running. The LCD display and touch switch panel green LED’s are illuminated to correspond to a particular hardware device. Once Show Off mode has been initiated. If the currently displayed output has a green backlight then that output has been switched on. Any combination of outputs can be switched on or off. The touch switch LED’s are . The following table details the display order of the test. This action moves the Current Fault into the Previous Fault while clearing the Current Fault. 4. The LCD display is Red backlight ‘Ad’. The LCD display is Red backlight and ‘HO’. The Show Off display cycles through every LED. and also on the LCD as shown below. using binary encoding. Press Power to Exit at any time (All outputs will be switched off on exit).3. the mains power must be removed to exit out of Show Off mode.3. 4.15 -
.4. Press Power to advance to the next mode. Press Power to skip show off mode and move onto the next mode. If any front panel key is pressed the dishwasher will re-initiate a series of short tones. Press Start/Pause to initiate show off mode: A short series of tones indicates that Show Off mode has been entered. Press Start/Pause to advance to next hardware output.11 Hardware Output Diagnostic Test Mode
This mode tests all the hardware outputs and inputs. Press Start/Pause to enter hardware diagnostics. and if the backlight is red then that output is off. To Clear the Previous Fault press Keylock once more until the beep is sounded.10 Show Off Mode
This mode initiates a shop show off display and operation demonstration.3.
.9
Clearing Fault Logs
To Clear the current Fault press the Keylock button until a beep is sounded. Press Keylock to turn the currently displayed output On or Off. Press Power to skip hardware diagnostics and advance to the next mode. Once hardware diagnostics has been entered the current hardware output being tested is indicated in green on the touch switch panel. & LCD segment. Warning: Once a fault has been cleared it is permanently removed from Memory and cannot be recovered.Grn Grn __ Grn Grn.

12 Continuous Cycle Life Test Mode In this mode the dishwasher can be run continuously in any wash cycle. the dishwasher automatically restarts the same wash cycle. To initiate a continuous cycle press Start/Pause.5sec) from when the tub has changed state to the position that is indicated on the LED. To exit diagnostic mode push Power. In continuous cycle a delay occurs when a cycle has finished before the next cycle starts. and the backlight alternates between RED and OFF. Off = Closed. Tub Open Microswitch Test: At any time during HO test mode the Rinse red LED indicates the tub position. The touchswitch panel is Red Red __ Red Red.LCD Heavy Norm Fast Deli Hardware Output ------------------------------------------------------------------------------------------EU Off Off Off On Exhaust Valve FU Off Off On Off Fill Water Valve dd Off Off On On Detergent Diverter Valve LS Off On Off Off Lid Seal Pump rd Off On Off On Rinse Aid Dispenser (dispenses current setting) P1 Off On On Off Motor Wash direction (2300-2850 rpm) P2 Off On On On Motor Drain direction (4200 rpm) dF On Off Off Off DC drying fan (On 100% duty) Er On Off Off On Element Relay ‘temp’ On Off On Off Displays current water temperature. WARNING : As there is no protection in this mode it is possible to turn the element on with no water in the tub. This delay is currently 1 min.16 -
. During this time the LCD displays a finish cycle display.
. Continuous cycling is indicated by the backlight alternating between green and orange. NB : No Fault codes will come up while in diagnostics mode. Continuous cycling can be canceled at any time by pushing the Power button. or removing the mains power. This is due the communication delays between the two micro-controllers. The LCD is Red backlight and display CC. Choose the required cycle and operate the dishwasher as normal. It is advisable to avoid turning on the element without water in the tub.3. The dishwasher will enter standby mode. On = Open. 4. Note : There maybe a short delay (up to 0. Once the cycle has finished.

17 -
. Pause the dishwasher while running a Continuous Cycle.. Low_byte = 156 High_byte = 21 Cycle_count = ((200 x 21) + 156) = 4. The two bytes of the cycle count will be displayed alternately.
. Eg.. The High byte is displayed when the backlight is Orange. The Low byte is displayed when the backlight is Green. To calculate the Total diswasher cycle count use the formula below.. Cycle_Count = ((200 x High_byte) + Low_byte).Cycle Count Retrieval To display the cycle count on the LCD screen. in syncronisation with the changing backlight..356.

At the same time. Note if you press Keylock again you will remove the previous fault. then the previous fault code will be displayed in the LCD
To clear the current fault code press the Keylock once. Rinse LED on = Open Rinse LED off =Closed
See Next Page
. then Start/Pause buttons for 6 seconds All LED's & LCD segments except Keylock are illuminated Press Start/Pause button
#1 Display Mode
Initiate Pen upload via Rinse program LED.4
Diagnostics Quick Reference Flow Chart
Press and hold Keylock.
Press Power button
Press Start/Pause button
Cycles through every LED & LCD segment Hardware output diagnostic test mode
Disconnect power supply to exit Show Off mode
#2 Show Off/Demo Mode Press Power Button Press Start/Pause button
#3 Hardwre Output Test Mode Press Keylock button to turn output On/Off
LED Heavy Normal Light Delicate EU Off Off Off On FU Off Off On Off dd Off Off On On LS Off On Off Off rd Off On Off On P1 Off On On Off P2 Off On On On dF On Off Off Off Er On Off Off On temp On Off On Off
EU = Exhaust valve FU = Water Inlet Valve dd = Detergent diverter valve Er = Element relay LS = Lid seal pump rd = Rinse aid dispenser P1 = Wash pump motor P2 = Drain pump motor dF = Drying fan temp = currentwater temperature Note: Display green = output on Display red = output off Tub microswitch can be tested at any time. first the current.18 -
.4.

4.
Press Start/Pause button #4 Continuous Cycle Test Mode
Stand .by mode
Once a mode has been entered.
This turns the Smiley Face off & deactivates Tub Open beeps. Continuous cycle is indicated by backlight alternating between green & orange. In this mode the cycle count is displayed. Touchswitch panel is Red Red Red Red Select desired cycle and operate as normal. If this happens then change water pressure setting to 'LP'. press Power to exit diagnostics except Display and Show Off modes) which require the plug to be removed from the power socket.
Press Power to exit
Press Start/Pause
This adjusts water pressure set up from low to high
. Each LED = 1cc.
Press Key Lock.
Press Key Lock
This turns the Smiley Face on & activates Tub Open beeps.
Rinse Aid Adjustments/Tub Open Beep/Water Pressure Setup
LCD Display on.19 -
. Hold the Programme and Eco Touch Switches simultaneously for 5 seconds Machine Beeps and "HP" is displayed in the LCD. (Factory setting is 'HP'.
Press Power to Exit.)
Press Start/Pause
This adjusts water pressure set up from high to low. Push Wash Programme Selection Touch Switch to select dose of Rinse Aid.4
Diagnostics Quick Reference Flow Chart cont'd
Press Power Button
Continuous cycle
LCD is Rd backlight and displays CC.
Water Pressure option is available if water pressure is below 50kPa and a 'U1'fault occurs during wash cycles.

4.
• • • •
F3
---##
The water temperature is • greater than 80°C. •
. The hardware communications link from console to motor micro has broken. indicating leaking seal or siphoning. The element has gone open circuit. Foreign matter has jammed the motor. The incoming water temperature is greater than 80°C. External master device has incorrect baud rate. The fill valve has failed open. The element has failed on.20 -
.5
Fault Codes
LED Display ----# Fault The flood switch has been activated. The motor control micro has communications set at an incorrect baud rate. An external device is holding the communications line low. •
•
• F8 -#--RAM fault. • • • • Possible Causes A leak has occurred in the base of the dishwasher. The electronic controller has RAM fault.
Fault Code F1
F2
---#-
The motor is not rotating. The hall sensor is faulty or missing. The flood switch is faulty. Temperature sensor or electronics ADC has failed. • • •
F4
--#--
F6
--##-
Communications Baud rate error. The motor drive electronics or power supply have failed. The motor control micro has crashed and is not responding to communications requests. The element is not connected. • • • No temperature increase has been recorded when the element is on. The temperature sensor has failed. The rotor is faulty or missing. Communication echo bytes are consistently incorrect (perhaps due to noise). Excessive water has been added to a wash sub cycle. The electronics ADC has failed.
•
•
• F7 --### Communications TimeOut error.

U3
#--##
Time to fill was too short. The fill valve has failed closed. The machine is siphoning. The exhaust valve has failed open circuit. Sprayarm or rotor not turning freely. The motor has not primed after a given time. The drawer microswitch has failed.Fault Code U1
LED Display #---#
Fault Fill fault. Motor electronics have failed. The sprayarm is not in place.
• • • • • • • • •
U2
#--#-
Tub open fault. Excessive foaming. Drain pump is blocked. The drawer has been forced open during a wash cycle. Machine set to 'LP' on a high pressure water supply. indicating water was still in the tub. Drain hose is blocked.21 -
.
. The machine is set to 'HP' on a low pressure water supply.
• • • • •
Possible Causes The water supply is not turned on.

F1 is not monitored in diagnostics.22 -
. When one drawer leaks this cuts out both drawers.
Does the water overflow through the back air vent? No Look for a leak from the lid. tub & hoses (refer Page 32) No Yes Check the spray arm for a split or water deflection Yes
Yes
Did a flood occur & activate the flood switch? No
No
Machine may be syphoning and has topped up too many times
Is the water level in the tub above the spray arm? Note*
Has the switch or polystyrene float been mislocated
Check non-return valve and drain hose height
No Check the flood switch wiring and switch for a closed circuit Not OK
Yes Was the machine tilted? Yes
Check the fill valve for an electrical or mechanical fault
Not OK
OK Check load sensing through a serial download connection Test the flood switch connections for a closed circuit OK Repair the wiring or connections Not OK Relocate float
Replace valves
Note: Has the spray arm floated off affecting load sensing or is the product programmed for low pressure fill on a high pressure installation? Reprogramme?
Replace the flood switch
.F1
Monitored while mains power is on.

Not OK Repair or replace wiring. No
Substitute Rotor
Not OK Check the stator connections and wiring. OK
*Note: Has the spray arm caused the rotor to jam by being interfered with by an object falling through the basket?
Replace the RPS.
The rotor has not been sensed as rotating. See specification chart for stator readings. Is the rotor jammed? Note* Yes Free or replace the rotor.
. It is looking for 10 stalls in a row.F2
This fault is monitored when the motor is running. It is not monitored during diagnostics.23 -
. connections or stator. OK
OK
Replace Rotor
Substitue the rotor position sensor on the stator. Check the rotor housing.

It is not monitored during diagnostics.F3
This fault is monitored every 6 seconds while the mains power is connected. Not OK
Replace the electronic controller
Replace the heater plate
. See chart.24 -
.
Water sensed at greater than 80°C
No Is the element on all the time?
Is the incoming water greater than 80° C?
Yes
Adjust the incoming water temperature
Yes
No
Replace the electronic controller
Turn the power off at the supply and then retest
Check the wiring & connections to the element and sensor PCB Not OK OK
No
Is the element heating all the time?
Yes
Repair or replace the wiring or connections
Check the resistance of the sensor at the PCB.

Does the element heat in diagnostics? Test the resistance of the sensor as per the temperature chart
Test the resistance of the element at the controller as per the specifications
NO
YES
Not OK
OK Turn the power to the dishdrawer off at the supply.
OK
Not OK
Test the edge connectors and wiring
Replace the electronic controller
Check the wiring and connections to the sensor OK
OK
Not OK Replace the Heater Plate
Test the resistance at the element Not OK
Repair the wiring or connections
Replace the element plate
.25 -
.F4
No temperature increase has been sensed while the element is on. Then retest.

26 -
. so ignore it. you may have induced the fault . Replace the electronic controller
.F6
Inter-communication fault. If this occurs while you are servicing the Dishdrawer. Replace the electronic controller.
F7
F8
RAM fault.

Not OK Replace the valve. It must have a mechanical fault. OK The wash impellor is slipping or missing OK
Not OK
Refit spray arm
Check and repair the wiring or connections
Not OK
Replace the rotor assembly
Machine siphoning
Not OK
Check the drain length and height OK
Foaming
Check for incorrect use of detergent or rinse aid leak.27 -
. OK
Yes
Replace the electronic controller
Sprayarm not in place.
Is the water pressure above 50Kpa? Yes Does the water valve activate in diagnostics?
No
Below 50kPa water pressure change the programme from 'HP' to 'LP' as per Page 14
Is the tap turned on or the water inlet filters blocked?
OK
Check for a kinked hose
No
Check the voltage at the controller to the valve. during which time the fill valve operates for 2 seconds. OK Replace the valve. 24vdc Not OK
OK
Check the continuity of the Not OK wiring and valve. This occurs three times.
.
Check the resistance of the valve at the valve. If prime is not detected then the fill valve is operated continually until prime is reached.U1
Motor runs for 15 seconds.

Note: Tub home microswitch is located on the rear of the left slide runner and is connected in series with the exhaust valve.
Is the drawer open? Yes No Check the microswitch is working in diagnostics.
Replace the microswitch.28 -
. OK Check the mechanical operation of the the slides.
. OK Test the exhaust valve for an open circuit. Not OK Not OK
Shut the drawer.
Adjust the slides.U2
The tub drawer has been sensed as open during the cycle or the exhaust valve is open circuit.

29 -
.
.U3
The motor has sensed prime too quickly
Check locknut on filter plate is locked in correctly No Check for pump blockage or drain impellor failure
Has the dishdrawer drained?
Yes Check the rotor/sprayarm are turning freely Not OK
OK
Free sprayarm or rotor
Possibilty of electronics incorrectly sensing the load but not likely
Has it been programmed for low pressure? Refer Page 14 for Re-programming.

30 -
. OK Not OK
Replace dispenser. Repair wiring or connection.
Check the voltage (24 Volts dc) at the PCB.
Replace the PCB
. does the Dispenser pump run?
Yes
No Check the continuity of the wiring and pump solenoid by removing the connections at the PCB and testing with a meter.
Is there rinse aid in the dispesner?
OK Not OK
OK
Replace dispenser.Poor Dry P e rf o r m a n c e
Rinse aid not being dispensed
In Diagnostics.

Poor Wash Performance
Detergent not flushing out of Pre Wash or Main Wash chambers
In Diagnostics active the fill valve and note which side of the dispenser the water comes out. re-active the fill valve to see if the Not OK water now exits the other side of the dispenser. OK
Remove drawer fronts and note that this happens during cycle
Replace dispenser
No
Yes May have intermitent bockage in dispenser
Test voltage at the PCB (24 volt)
Not OK
Replace Electronic PCB
. and testing with a meter. Then turn off the fill valve and activate the diverter valve(dd).
OK
Not OK
Check the continuity of the wiring and diverter solinoid by removing the connections at the PCB.31 -
.

1 6. Slide forward the drying fan duct and remove.4
6.1.1 6. Note: The pin web is vertical.7 6.3 Slide open drawer.1. Disconnect the two wire harness from the electronic controller Release the three securing tabs that hold the drying fan in place while applying forward pressure on the drying fan.3.6.1.
SERVICE PROCEDURES Drawer Front Removal
6.0 6.2. Using a small blade screwdriver slip it down the end of the LCD with the single tab.3.3 6.1. With both pins removed the bottom of the drawer front can now be eased down and forward so as to clear the microswitch lever. Locate draw pin on either side of the tub. Now carefully pull the drawer front down to allow it to come free from the top locating slots.2.3
Drying Fan Removal
6.3.3. Using a sharp pair of long nose pliers or slip jaw pliers grasp the center dividing web of the pin and pull away from the tub to remove the pin.4 6.1. The handle may now be lifted clear.2 6. Refit in reverse manner insuring the drawer slides are right forward and the pin secures through the hook on the front end of the slide.2 6.
6. Note: When reinserting the pins make sure the dividing web is vertical. This will release the LCD.
Handle and LCD Display Removal
6.2 6.2.2.3.2.7
6.6 6. The drying fan will now come free.
.1.2. Pull forward on the handle tabs and this will release them from the location inserts. Refit in reverse manner.34 -
.
6. Refit in reverse manner.2. The LCD display is held in place by a spring tab on one end.5 6.1.4 6. The wiring harness can now be unplugged from the LCD.1. Support the drawer front with your hand while doing this.2. The handle clips under two location inserts either side of the tub.1 6.5 Remove the drawer front as per instructions in 6.2 Remove the drawer front as per instructions in 6.1.3 6. Disconnect the seven wire harness from the electronic controller to the LCD or Badge. Push pads can now be removed. This allows the drawer front to come away with the handle insert and insulation.8
6.1. The LCD display holds these in place.3.6 6.

1 6. This will allow the disconnection off the lower wiring connectors and the two and three wire looms from their wire duct. Refit in reverse manner ensuring it is clipped into place.5 6.2 Disconnect the two wiring loom connections off the dispenser coils.4 6.5.9
6.2 6.6 6. Unclip the fill hose on the dispenser While holding the dispenser unscrew the six T10 Torx drive screws securing the brackets around the dispenser.35 -
.6.2 6. To open up the dispenser door fully.5.3 6.3 6.1.4
Detergent Dispenser
6.5. Placing a finger either side of the top sides of the controller.7
6.
6.4 6.& 6. This can be done with the dispenser in place.6
Top Kick Strip Removal
6.8 Remove the drawer front and handle as per instructions in 6. pull it forward until the controller clears the top edge of the tub.1 6. The dispenser can now be removed from inside the tub.4.4.7 6.2 6.1.1 6.4.4.6 6. Pull the bottom of the top kickstrip forward quickly.3 6.4.5 Pull out the lower drawer. Disconnect the wiring connectors down the left side of the controller.4.6.6. first open the door using the release catch then squeeze the top sides of the door. The controller can now be tipped down to 90° from it’s original position.5. The controller can now be lifted clear.
. Note: Push back locking tabs to allow connectors to release. Place both hands under the top kick strip.4.6. Refit in reverse manner ensuring the dispenser gasket is located correctly.5.5. Tipping it right up will allow the top locating tabs to drop out of the tub inserts.4 Remove the drawer front and handle as per instructions in 6.4. The coils can be replaced as a spare part by sliding them off the armature.5
Electronic Controller
6.
6.4.6. Unclip the retainer flap at the bottom center of the dispenser and slide out the rinse aid level LED.6.2. This will release the door to the fully open position. Refit in reverse manner.& 6.

6 Remove the drawer front as per instructions in 6.8.8
Wiring Cover Removal
6. Rotate the filter plate locknut anti-clockwise to release the filter plate from the rotor assembly.
6.7.5 Remove the lower racks from the tub.7. Refit by locating the lower kick strip pins into the chassis clips and foot retainer clips. Remove the drain filter assembly. Push on the face of the lower kick strip to locate home the lower kickstrip pins. The wiring cover may now be moved forward to release it from the link assembly at the rear.2 6.1 6. Then refit in reverse manner.8.1 6.10. Insert a flat blade screwdriver into the two inserts in the trim above the lower kick strip and twist. To reassemble first ensure that the wiring harnesses.10
Rotor Assembly Removal
6.2 6.2 6.36 -
.7.9. This assembly is not serviceable.6.3 6. Refit in reverse manner.7
Lower Kick Strip Removal
6.9.4 6.
6. This will unclip the lower kick strip from the chassis.4 6.8.9.1 6.
6. Release the three clips on the underside of the tub which retain the wiring cover. Unclip the front two legs of the wiring cover from under the electronic controller and the front left hand side of the tub.9
Filter Plate Removal
6.8. Rotate the rotor locking ring anti clockwise to release it from the motor assembly. Refit in reverse manner.5 6.3 6. Lift the filter plate clear.10. drain hose and fill hose are clipped into their correct position.10.9.2 6.1 6.10.
.3 6.8.3 6.6.7.4 Remove filter plate as per instructions 6.5 Remove the top kick strip as per instructions in 6.9.9.7.1.4 6.8.

Holding the pump housing on the motor assembly lift the locking ring.12.1 6.11.6.11. The suction pipe of the drain molding will slide out of the tub drain area.12.12.9
6.11.11
Tub Removal
6.12
Locking Ring.11.5 6.2 Remove the drawer front.12. Disconnect the earth wire off the element plate. Lubricate and if necessary replace ‘O’ rings before reassembly.12. Disconnect the wiring connectors off the heater plate and motor (mark motor wire location). tub. Unclip the drain hose cuff from the motor assembly.12.11.6 Remove the drawer front as per instructions in 6.8 6.7 6.6 6. To release the motor connections push a fine blade screwdriver down alongside the wiring connection to release the locking barb on the terminal. From the under side of the tub now unclip the drain hose.9
6.12. 6.4 6.11.10
.12.12.37 -
. filter plate and rotor assembly as per instructions in 6.1.4 6. You may now lift the locking ring clear of the motor assembly.8 6.11. The tub may now be lifted at the front and slipped forward off the slide runners.10 & 6. Remove the wiring cover as per instructions in 6. Check both the drain cuff ‘O’ ring and suction pipe ‘O’ ring for deformation and damage.3 6. Refit in reverse manner.1.2 6. fill hose and the wiring looms which go to the link assembly.8.5 6.11 Reassemble in reverse manner ensuring all locking ring tabs are engaged. these and the tub sealing area must be clean and put in the correct place before reassembly takes place.
6. Element Plate and Motor Assembly Removal
6. Disconnect the fill hose from the dispenser (water may drip) Disconnect the mains harness and chassis harness connectors from the electronic controller. This will allow the heater plate and motor assembly to come apart Be careful of the two ‘O’ rings which seal between the motor assembly and heater plate and the heater plate and tub. While lifting the tab on the locking ring.11.6. Disconnect the rotor position sensor from the motor housing.1 6. heating plate and motor clear of the tub. rotate the ring anticlockwise until it comes free of tub tabs.12.6.3 6. This also releases the motor housing from the locking ring.12.9.
6. The link assembly can now be unhooked from the rear of the tub by pressing the spigots back through the tub connection point.11.11.7 6.

Note: The bottom lid has a strengthening bar at the rear.14.1 6.5 Lay the gasket in the approximate position around the lid. then apply downward pressure to the lid while holding the tab back. 6.13.14. 6.4 Fit the new up to the shoulder on the plumbing connection. Ensure the location tab at the right rear of the lid locates to the right of the rear chassis support. This will release the fir tree part of the gasket from the retaining slot. The fir tree section pushes into the lid slot. Remove the seal by grasping hold of it in the middle and easing it away from the lid.14.14.14.
. Note: This is a push in seal and does not require a sealant.13.14
Lid Seal Replacement
6.2 Remove Lid assembly as per instructions 6.14.14. 6. 6. using a blade screwdriver.13.13.13.6.9 Refit lid as per instructions in 6.11 Disconnect the lid plumbing off the exhaust valve and air pump above the ‘Y’ joint. The pressure should not drop below 30Kpa over a 60 second period.13.5 The lid will now drop into the chassis opening and this will allow it to be slid forward out of the chassis area.14.14.3 Release two locking tabs securing the front of the lid to the chassis.
6. 6. 6.2 Remove tub assembly as per instructions in 6.6 Refit in reverse manner being careful not to damage the seal when fitting the lid in through the chassis. 6. 6.6. Slide both ends of the lid seal into place ensuring they rest against the stops.8 Testing the gasket with an extension piece of air plumbing.1 6. 6.4 To do this.38 -
.3 Ease the gasket away from the air plumbing connector joint at the rear of the lid.13
Lid Assembly Removal
6. 6. air gauge and air supply before fitting would be advisable. push back the tab in the center of the rectangular slot at the front of the lid molding. 6.13.7 Now the rest of the gasket can be pushed in around the lid section.13.6 Press the gasket into position at each corner. Pump the gasket up to 40Kpa and then pinch off the supply.

1 6.17.1 6.15.16.3
6.15.6.4 The slide runner may now be pulled forward to release it from its location in the rear of the chassis.17. feed the ends of the sound gasket into the ends of the trim slot.16
Front Trim Replacement
6. 6.17. It can be realigned on reassembly. 6.11 Bottom slide runners only. This can be done by slipping a blade screwdriver between the trim and the chassis and twisting the blade to snap the clips.39 -
. This will knock the slide runner up and free from its location in the chassis.3 Tap the slide runner from underneath at the front. This does not matter. Remove the two large Philips head screws securing the slide runner at the front.2 To refit. Note: On the bottom lefthand slide runner the water valve mounting bracket will come away as well.15.15.
. The backing plate that the screws locate into may come loose.2 Remove the Tub as per instructions 6.5 Refit in reverse manner. 6.15
Slide Runner Replacement
6.16.17
Sound Gasket Replacement
6.
6.15.3 Push the middle section of the sound gasket into the slot then work the rest in.4 Roll the sound gasket with a coin to get it even.
6. 6.1 Remove the sound gasket by grasping it in the middle with your fingers and pulling it out of the trim.17. 6. Protect the cabinet from chipping and remove the broken clips. 6.16. This will mean the water and electrical connections will have to be disconnected first. Line up the clips on the replacement trim with the holes in the chassis and push home.2 The trim has to be removed by breaking the retaining clips.

Method 1: Remove appropriate tub assembly as per instructions in 6.19.9 The air pump can now be released from the rubber mount (if sliding the rubber mount off the exhaust valve be careful not to lose the steel core which will fall out of the exhaust valve.11 Refit in reverse manner.5.19. 6.18
Link Assembly Removal
Remove tub as in instructions 6. 6. Ensure the pump hangers are correctly located.3 Using a blade screw driver to wedge out the spigots in the hinge point of the bracket connecting to the rear of the dishwasher.3 Remove the clip pegs from the slide retainers. 6. 6.5 Refit in reverse manner. 6. 6. fill hose and wiring harnesses (mark on the harnesses and hoses the location of these to the lid so that when reassembling they are put back in the same location).19.7 6. 6.18. 6. 6.18. Remove the screw securing the rear service panel. release the wire and hose retaining clip to free these items.19
Air Pump Removal
Note: This component maybe serviced by two Methods.1 6.40 -
.19.2
6.19.1
. 6.8 Disconnect the air plumbing from the air pump.18.11.10 Disconnect the wiring connector from the coil.2 Method 2: Remove lower kick strip as per instructions in 6. 6.19. 6. 6.18.6 Fit a screwdriver through the hole in the rear service panel and lift or tap the shaft of the screwdriver up so to disengage the panel from its retainers.6.11.4 Slide the dishdrawer from the cavity to allow servicing from the rear.19.18. then slide the bracket up and out of rear panel. 6. Release clips on side of link assembly to allow the lid of the assembly to hinge open. 6.4 To replace the link assembly bracket.19.4 With both assembly lid open and the hinge point free the assembly may be released from the drain hose.7 The service procedures from now on are the same for both methods. The exhaust valve core is fitted with the rubber end upper most ).18.19.19.19.

6 6. 6. Release the locking tabs for the connectors with a blade screwdriver while doing this.21.20.1 6. 6.8 Lift the exhaust valve up to disengage the mounting from the chassis. 6.7
6.12 Refit in reverse manner.11 Disconnect the wiring connection from the exhaust valve.20.5 Remove the screw securing the rear service panel.22
Flood Switch Removal
6.5 Refit in reverse manner.20.2 6.11 The flood switch is located on the base of the chassis.22.21.20.20. Disconnect the two fill hoses off the valve noting which hose goes to the top and tub and which goes to the bottom tub. 6. Refit in reverse manner. 6.6.1 Method 1: Remove tub assembly as per instructions in 6.9 Disconnect the air plumbing from the exhaust valve. 6.20.3 Remove the lower tub as per instructions in 6.20
Exhaust Valve Removal
Note: This component maybe serviced by two Methods.21
Water Valve Removal
6.2 6.10 Remove the exhaust valve from the rubber mount (be careful not to lose the steel core which will fall out of the exhaust valve.4 6. 6. 6.41 -
.2 Method 2: Remove lower kick strip as per instructions in 6.6 Fit a screwdriver through the hole in the rear service panel and lift or tap the shaft of the screwdriver up so to disengage the panel from its retainers.20.
.20.4 The switch is released from the chassis by squeezing together the pins on the legs of the switch with a fine blade screwdriver.11. The water valve may now be slid forward off the mounting bracket. 6.20. 6.4 Slide the dishdrawer from the cavity to allow servicing from the rear.3 Remove the lower tub as per instructions in 6.5 6.22. Ensure the pump hangers are correctly located. Disconnect the inlet hose connection. Remove the wiring connections to the switch noting each connection location.21.21. 6. 6.21. 6.
6. 6.7.21.7 The service procedures from now on are the same for both directions.22.
6.21.20.11.20.22. Disconnect the wiring connections to both solenoids.1 6.22.20. The exhaust valve core is fitted with the rubber end upper most).3 Remove the clip pegs from the slide retainers. The water valve is located at the rear on the lefthand side.

6.24.23. 6.23. The EMI filter can now be replaced or serviced.10 Refit in reverse manner. 6.23
EMI Filter Removal
6.24.24. 6.23.. Note:
. Remove the screw in the rear access panel of the chassis. Raise the insulating cover to expose the EMI filter.23.11.6. this component can be serviced by two methods.6 Fit a screwdriver through the hole in the rear service panel and lift or tap the shaft of the screwdriver up so as to disengage the panel from its retainers. Refit in reverse manner. 6.9 Release the microswitch from the retaining clips on latch retaining mechanism on the drawer slide. The EMI filter is located at the rear left hand side of the chassis base.24
Tub Microswitch Removal
Located on the rear of the left slide runner and connected in series with the exhaust valve.24.5 Remove the screw securing the rear service panel.7 The service procedures from now on are the same for both methods.42 -
.24.7. 6.2 Method 2: Remove lower kickstrip as per instructions in 6.1 Method 1: Remove the slide runner as per instructions in 6.23.24.2 6. 6.24.5 6.8 Disconnect the wiring to the microswitch.3 6. 6. 6.15.4 6.24.24.24.3 Remove the clip pegs from the slide runners.23.6 Remove the lower tub as per instructions in 6.4 Slide the DishDrawer from the cavity to allow servicing from the rear.
6.1 6. 6.